The voluntary carbon market has become an established and important part of climate change mitigation. Today it functions with clear rules and standards to ensure quality and a global client base of companies who use carbon offset programmes as part of their broader carbon management strategies. Carbon offset buyers have high expectations of quality from the firms they work with.  ICROA enables its members to demonstrate the very best practices in carbon management and offsetting services. Members have met the requirements for quality, integrity and credibility that are essential characteristics of any successful carbon offset programme.